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If , where i = √-1, than  will be

  1. 1
  2. - 3/5
  3. -1
  4. 3/5

Answer (Detailed Solution Below)

Option 1 : 1
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Detailed Solution

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Formula used:

(a + b)(a - b) = a2 - b2

i2 = -1

Calculation:

Given that,

         (Using above identity)

                     (∵ i2 = -1)

On comparing both side

a = 1/5 and b = 1/5

Hence, a/b will be 1.

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